One of the three albums that accompanied the release of Ar tonelico Qoga: Knell of Ar Ciel, and part of the third and (currently) final set of Hymmnos Concerts. This CD contains all of the songs and hymns sung by Azumi Inoue, Aw, Haruka Shimotsuki, Yula Yayoi, Haruka Togawa, Rekka Katakiri and Noriko Mitose, who serve as the Hymmnos Singers for the characters Mute, Finnel, Harvestasha Vista, Richaryosha, Cocona Bartel and Ciela (Azumi Inoue only sings an image song for the region of Sol Cluster). It also contains two bonus instrumental tracks that aren't present in the game proper.

Limited Bonus

The normal version of the Hymmnocase III.

The special Hymmno Case III sold by Animate.

This album, and the Ar tonelico III Hymmnos Concert Side Blue ~SAKIYA=RUMEI~, could be bought together in a pack that included special slip covers called Hymmnos Case III for storing both albums together. There were two editions of the covers: one featured Saki and Finnel in the cover, which was the one included in the orders bought from Animate, and a other with a gray cover with a butterfly motif, which was included in the packages sold at all the other stores.